SI_CLONELIST
if (dev->si_flags & SI_CLONELIST) {
dev->si_flags &= ~SI_CLONELIST;
KASSERT(dev->si_flags & SI_CLONELIST,
if (dev->si_flags & SI_CLONELIST) {
KASSERT(!(dev->si_flags & SI_CLONELIST),
dev->si_flags |= SI_CLONELIST;
KASSERT(dev->si_flags & SI_CLONELIST,
dev->si_flags &= ~SI_CLONELIST;
SI_FLAG(SI_CLONELIST);